FILE - In this June 17, 2018 file photo provided by U.S. Customs and Border Protection, people who've been taken into custody related to cases of illegal entry into the United States, sit in one of the cages at a facility in McAllen, Texas. Immigrant children described hunger, cold and fear in a voluminous court filing about the facilities where they were held in the days after crossing the border. Advocates fanned out across the southwest to interview more than 200 immigrant parents and children about conditions in U.S. holding facilities, detention centers and a youth shelter. The accounts form part of a case over whether the government is complying with a longstanding settlement over the treatment of immigrant youth in custody. (U.S. Customs and Border Protection's Rio Grande Valley Sector via AP)